linux/fs/iomap/internal.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _IOMAP_INTERNAL_H
#define _IOMAP_INTERNAL_H 1

#define IOEND_BATCH_SIZE	4096

u32 iomap_finish_ioend_direct(struct iomap_ioend *ioend);

#endif /* _IOMAP_INTERNAL_H */
iomap: move common ioend code to ioend.c This code will be reused for direct I/O soon, so split it out of buffered-io.c. Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20250206064035.2323428-6-hch@lst.de Reviewed-by: "Darrick J. Wong" <djwong@kernel.org> Signed-off-by: Christian Brauner <brauner@kernel.org> 2025-02-06 07:40:03 +01:00			`/* SPDX-License-Identifier: GPL-2.0 */`
			`#ifndef _IOMAP_INTERNAL_H`
			`#define _IOMAP_INTERNAL_H 1`

			`#define IOEND_BATCH_SIZE 4096`

iomap: optionally use ioends for direct I/O struct iomap_ioend currently tracks outstanding buffered writes and has some really nice code in core iomap and XFS to merge contiguous I/Os an defer them to userspace for completion in a very efficient way. For zoned writes we'll also need a per-bio user context completion to record the written blocks, and the infrastructure for that would look basically like the ioend handling for buffered I/O. So instead of reinventing the wheel, reuse the existing infrastructure. Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20250206064035.2323428-8-hch@lst.de Reviewed-by: "Darrick J. Wong" <djwong@kernel.org> Signed-off-by: Christian Brauner <brauner@kernel.org> 2025-02-06 07:40:05 +01:00			`u32 iomap_finish_ioend_direct(struct iomap_ioend *ioend);`
iomap: move common ioend code to ioend.c This code will be reused for direct I/O soon, so split it out of buffered-io.c. Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20250206064035.2323428-6-hch@lst.de Reviewed-by: "Darrick J. Wong" <djwong@kernel.org> Signed-off-by: Christian Brauner <brauner@kernel.org> 2025-02-06 07:40:03 +01:00
			`#endif /* _IOMAP_INTERNAL_H */`